)
of a circle
)
of a sphere
= A/V
| Symbol | Unit Name | Measures |
|---|---|---|
| m | meter | length |
| s | second | time |
| kg | kilogram | mass |
| K | kelvin | temperature |
| A | ampere | current |
| mol | mole | number of particles |
| cd | candela | luminous intensity |
| Symbol | Unit Name | Measures | Definition |
|---|---|---|---|
| °C | degree Celsius | temperature | K - 273.15 |
| L | liter | volume | a cube 0.1 m on a side |
| N | newton | force | kg * m / s2 |
| J | joule | energy | N * m |
| W | watt | power | J/s |
| Pa | pascal | pressure | N/m2 |
| Hz | hertz | frequency | 1/s |
| C | coulomb | charge | A * s |
| V | volt | potential | J/C = W/A |
|
|
ohm | resistance | V/A |
| ha | hectare | area | a square 100 m on a side |
| rad | radian | plane angle |
1/(2)
of a circle
|
| sr | steradian | solid angle |
1/(4)
of a sphere
|
| S | siemens | conductance |
1/ = A/V
|
| F | farad | capacitance | C/V |
| Wb | weber | magnetic flux | V * s |
| T | tesla | magnetic flux density | Wb/m2 |
| H | henry | inductance | Wb/A |
| lm | lumen | luminous flux | cd * sr |
| lx | lux | illuminance (illumination) | lm/m2 |
| Bq | becquerel | radioactivity | 1/s (decays per second) |
| Gy | gray | absorbed dose | J/kg (of body mass) |
| Sv | sievert | dose equivalent | Gy·Q·N (Q = quality factor) |
| kat | katal | catalytic activity | mol/s |